	function reward($field, $value, $fieldinfo) {
		$string .= '<fieldset class="blue pad-10" id="'.$field.'_box"><legend>等级奖励</legend>';				
		if ($value) {
			$value = dhtml_entity_decode($value);
			$value = htmlspecialchars_decode($value);
			$value = mb_unserialize($value);
			$divid = $field + "_box_item_" + random(4);
			foreach ($value as $k => $v) {
				$string .= '<div class="mb6" id="'.$divid.'">等级：<input type="text" name="info['.$field.'][rank][]" value="'.$k.'" class="input-text" size="5">级，奖励 <input type="text" name="info['.$field.'][number][]" value="'.$v.'" class="input-text">U币 <a href="javascript:remove_item(\''.$divid.'\')">移除</a></div>';
			}
		}
		$string .= '</fieldset><div class="bk10"></div>';
		$string .= '<input type="button" style="width: 66px;" class="button" onclick="add_item(\''.$field.'\');return false;" value="添加项目">';
		return $string;
	}